The other GOP candidates are finally starting to fight on Donald Trump’s terms, to judge by the slugfest that was Saturday night’s debate. But it speaks volumes — whole encyclopedias — about the ignorance of our political and media elites that they’re only now realizing that much of what Trump’s been doing is just busting balls. It’s a blue-collar ritual, with clear rules — overtly insulting, sure, but with infinite subtleties. It can be a test of manliness, a sign of respect, a way of bonding and much more. Rule No. 1: You can wince, but don’t squeal. Rule No....
